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A well-built and well-maintained concrete pool should last anywhere from 50 to 75 years. Concrete is prone to cracking, so winterization and regular pool repairs are particularly important. Water can seep into existing cracks, freeze, and make them worse. Most homeowners should resurface their concrete every few years to maintain their pool’s lifespan. 

You cannot DIY a gunite pool—unless, of course, you’re a homeowner who happens to also be a professional pool installer. And even pros need to have experience with gunite pools, in particular, before installing one. Only a skilled gunite pool technician can install this type of pool—it’s not a project you can do yourself.

Generally, you do not need to drain your pool to convert it to a saltwater system. The main exception is if you have used an antibacterial agent containing polyhexamethylene biguanide to sanitize your pool, as these sanitation products do not mix well with saltwater systems. If this is the case, you will need to start fresh. You can either drain the pool or treat the existing water with a high dose of chlorine to remove the antibacterial agent. If you choose the chlorine treatment, wait several days to allow the chlorine to work before proceeding with the conversion. If you are unsure whether this applies to your pool, consult a pool technician.

The life expectancy of a gunite pool is about 100 years or more with proper care. Clean your pool at least once a week and plan to resurface it every five to seven years. For winter, close down the gunite pool but don’t drain it. And you can increase your gunite pool’s longevity by repairing any damage and addressing any issues as soon as you notice them.